| Prenolepis jacobsoni|
Nothing is known about the biology of Prenolepis jacobsoni.
- 1 Identification
- 2 Distribution
- 3 Biology
- 4 Castes
- 5 Nomenclature
- 6 References
Williams and LaPolla (2016) - Small in overall size (TL: 2.42–2.64mm); obtusely angled propodeum with flat dorsal and posterior faces; petiole low in profile and elongate with a prominent anteroventral process.
This species has a narrow and elongate petiole (PetWI < 55) like Prenolepis darlena, Prenolepis fustinoda, Prenolepis jerdoni, and Prenolepis subopaca. In P. jacobsoni the petiole is distinct in that there is a prominent anteroventral process present and the scale has a unique shape. Prenolepis jacobsoni can also be distinguished by its smaller size, lighter color, and overall smooth cuticle.
Keys including this Species
Distribution based on Regional Taxon Lists
Distribution based on AntMaps
Distribution based on AntWeb specimens
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The following information is derived from Barry Bolton's New General Catalogue, a catalogue of the world's ants.
- jacobsoni. Prenolepis jacobsoni Crawley, 1923a: 30 (w.) INDONESIA (Sumatra).
Unless otherwise noted the text for the remainder of this section is reported from the publication that includes the original description.
Williams and LaPolla (2016) - (n=2): CMC: 10–14; EL: 0.21; EW: 0.17; HL: 0.61–0.66; HLA: 0.32– 0.34; HLP: 0.19; HW: 0.57–0.58; IOD: 0.44; LF1: 0.17; LF2: 0.11; LHT: 0.83–0.84; MMC: 2; MTW: 0.35–0.37; MW: 0.22; PDH: 0.26–0.27; PMC: 1–3; PrCL: 0.38–0.40; PrCW: 0.21; PrFL: 0.68–0.70; PrFW: 0.15–0.16; PTH: 0.21; PTL: 0.37–0.41; PTW: 0.19–0.22; PW: 0.43–0.44; SL: 0.86–0.92; TL: 2.42–2.64; WF1: 0.06; WF2: 0.05; WL: 0.88–0.89; BLI: 172–175; CI: 87–94; EPI: 172–175; FLI: 153; HTI: 145; PetHI: 79–81; PetWI: 53; PrCI: 52– 55; PrFI: 22; REL: 32–35; REL2: 37; REL3: 48–49; SI: 150–159.
Light to medium brown; cuticle of head, pronotum, mesopleuron, and gaster smooth and shiny; cuticle between metanotal spiracles rugoreticulate; very long, erect macrosetae on head and gaster; abundant decumbent setae on scapes and legs; sparse erect macrosetae on mesosoma; no erect macrosetae on the propodeum; head about as broad as long or slightly longer than broad and oval in shape with indistinct posterolateral corners and a convex posterior margin; compound eyes moderately large and convex, barely surpassing the lateral margins of the head in full-face view; torulae do not touch the posterior border of the clypeus; clypeus strongly medially convex and without prominent anterolateral lobes; mandibles with 6 teeth on the masticatory margin; ectal surface of mandibles smooth and shiny; in profile view, propodeum is obtusely angled with a flat dorsal face; petiole is narrow and elongate (PetWI < 55) with a prominent anteroventral process; scale of petiole is low in profile with a rounded dorsal apex of the scale.
- Neotype (designated by Williams & LaPolla, 2016: 227), worker, West Sumatra, Maninjau, Indonesia, 07–09 August 1985, USNMENT00755101, National Museum of Natural History.
This species was described by Crawley (1923) from a single worker specimen, but the type material is missing. In the interest of nomenclatural stability a neotype from the original type locality was designated by Williams & LaPolla (2016).
- Crawley, W. C. 1923a. Myrmecological notes. Entomol. Rec. J. Var. 35: 29-32 PDF (page 30, worker described)
- Williams, J. L. and J. S. LaPolla. 2016. Taxonomic revision and phylogeny of the ant genus Prenolepis (Hymenoptera: Formicidae). 4200(2):201–258. doi:10.11646/zootaxa.4200.2.1